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Patent US2805311A successfully refreshed from Google Patents.
US2805311A
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Temperature measurement and control
Assignee: Phillips Petroleum Co
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Filing: 1953-05-04
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Granted: 1957-09-03
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Expires: 1973-05-04
Abstract
No abstract record available.
Inventors
- 👤 Dale A Fluegel
- 👤 James R Parsons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:55
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/24; G05D23/2451; G05D23/2453
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1694264A
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US2275317A
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US2439711A
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US2467856A
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US2495844A
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US2519789A
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US2511981A
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US2548014A
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US2635225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |